They live 'wild' and use no make up (obviously) except for the purple markings around their eyes.

So I was wondering whether to get purple eyelashes to match the hair and eyebrows, or whether black eyelashes would look better on photos.

I'll most likely use a dark purple eyeliner around my eyes, just so they won't completely disappear in pictures. But would purple eyelashes look washed out in photos, or would black ones look too out of place? What would look best? I want to look feminine, but still look like I am naturally so, rather than because I use mascara/false eyelashes.

What do you think? Black or purple?

__________________"'Twas brillig, and the slithy toves
Did gyre and gimble in the wabe:
All mimsy were the borogoves,
And the mome raths outgrabe."

Black lashes are always going to be safe. They won't look out of place because the hair is a dark color too (eyebrows and lashes tend to be darker than hair anyway). Dark purple lashes will be fine as long as they're not too bright or light, but you might have to search for dark enough purple lashes. When in doubt, err on darker.